CZM-3 proton magnetometerDetailed product description：

The CZM-3 proton magnetometer is a high-sensitivity weak magnetic measurement device made based on the principle of free rotation of hydrogen proton magnetic moment in the geomagnetic field. This instrument is widely used for observing the geomagnetic field, including ground magnetic exploration in geological, petroleum, metallurgical, coal and other departments, ground diurnal variation station observation in marine and aerial magnetic surveys, and magnetic variation observation at geomagnetic stations in earthquake prediction work.

Main Features
High resolution, fully automatic tuning, dot matrix format LCD, on-site display of observation curves, automatic data recording and storage, daily variation automatic correction, can be connected to a computer for data processing, full Chinese menu, simple operation, reasonable structure, small size, light weight, strong anti-interference ability, low power consumption, stable and reliable operation.

Main technical indicators
Range of measurement: 30000nT to 70000nT
Resolution: 0.1nT
Measurement accuracy: ± 1nT
Gradient allowable range: Vertical gradient ≤ 2000nT/m
Horizontal gradient ≤ 1500nT/m
LCD dot matrix: 192 × 64
Data storage capacity: 4005 data in daily variation mode
2670 data points in manual mode
Working environment temperature: -20 ℃~50 ℃
Working environment humidity: ≤ 90% (30 ℃)
Power supply: Lithium ion battery, 15.5V~16.8V/3.8Ah, continuous operation for no less than 10 hours
Host size: 210 × 80 × 200mm
Host weight: 2kg
Probe size: Ø 72 × 140mm
Probe weight: 1kg